<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>变量</title>
</head>
<body>
	<script>
		var hhh = 'didijiuwo';


		function outer() {
			inner();
		}

		function inner() {
			// alert (inner.caller);
			alert(arguments.callee.caller);
		}
		outer();
	</script>
</body>
</html>